Product specifications

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6. To press DISPLAY menu key to call out display sinθ =A/B or C/D. Of which: “θ ” refers to phase
control menu.
location difference angle between channels. Please
7. To press F2 to select X-Y. Digital storage
refer to above figure for definition of A, B, C and D.
oscillograph will display input/output characteristics
Therefore, phase location difference angle is
of circuit under Lissa Jous's figure mode.
calculated as follows: =±arcsin (A/B) or =±arcsin
8. To adjust vertical scale and vertical position knob to
(C/D). Calculated phase location difference
reach the best effect for waveform.
angle shall be within Quadrant I or IV (namely,
9. (As shown in following figure), please observe and
(0~∏/2) or (3/2∏)~2∏) if main axle of ellipse is
calculate phase location difference by elliptic
within Quadrant I or III. Calculated value is within (∏
oscillograph figure method.
/2~∏) or (∏~3/2∏) if main axle of ellipse is within
Quadrant II or IV. Additionally, frequency and phase
location relationship between 2 signals can be
calculated according to figure if frequency or phase
location difference of 2 measured signals is integral
multiple.
Operating Manual for UTD2000/3000
Signal must be in the
horizontal center
Figure 3-7